Read this excerpt from act I, scene I, of Richard III:

For then I'll marry Warwick's youngest daughter.
What though I kill'd her husband and her father?
The readiest way to make the wench amends
Is to become her husband and her father:
The which will I; not all so much for love
As for another secret close intent,
By marrying her which I must reach unto.
But yet I run before my horse to market:
Clarence still breathes; Edward still lives and reigns:
When they are gone, then must I count my gains.

What is the meaning of the phrase "I run before my horse to market"?

A.
to be extremely busy
B.
to make devious plans
C.
to be in denial
D.
to be very impatient
E.
to speak too soon